Perhaps with a 12 Port head, but not a siamese head. Engine prep again is key, and the required needs and absolutes for an engine at the 800 HP level is greatly multiplied from even the 600 HP level. Its hard to image having several thousand dollars in machine work alone done to an engine, but its often necessary to have one survive at that power level, especially if you only think boring, o-ringing and align honing are all you can do to one. There is a whole other universe out there machine work wise beyond the 450-500 HP level that needs to be done, but rarely discussed here because so few have ever been there.
